Automobile heater



. luly 11. 1939. w. KARSL L2,165,269

Au'rouoBILE HEATER ATTORNEYS July 14.1, 1939. 'w'. KAR'sL.

AUTOMOBILE HEATER Filed March 11:., 19,36

U INVENTOR. Zf/L aww/me? MM5 f' n V W# f AT'roRNEYS 55 ving the fuel mixture,

Patented July 1 1, 1939 .UNITED STATES- PATENT ori-ICE 2.1155269V y Aoi-omonima mammaA Karsel, Chicago, Ill., assignor to Stewart-Warner Corporation, Chicago, Ill., a corporation ol Virginia Application March 11, 1936, Serialv No. 68,179 Claims. (011237-123) y My invention relates in general to heaters for heating automobiles or other motor vehicles utilizing hydro-carbons for fuel. although, of course,

, it may be used wherever applicable and is partic- 5 ularly directed to such heaters in which the heat is supplied directly by combustion as distin` guished from those utilizing steam or heat from the automobile engine. f' v The objects of this invention are to provide an provide such a heater having a prime source of combustion'to supply heat to the vehicle and an improved heat distributing unit; to provide a novel means for mounting a heater in a motor vehicle; to provide an improved means for heat transfer; and to provide such improvements in construction and advantages in operation as will appear more fully from the following description. In the accompanying drawings illustrating this invention,

vFigure 1 is a vertical view'partly in section lshowing the heater as applied to a vehicle dashboard; v

Figure 2 isa sectional View taken on the line Figure 3 is a perspective view of the radiator or heat transferring device; and

Figure4 is a wiring diagram showing the control for the fan and also for the spark plug. In the particular form ofv the invention shown in these drawings' 5 represents a' casing which provides a furnaceor combustion chamber, prei-` erably of relatively small size. This combustion chamber is covered with insulating material 6 enclosed by a casing 1. The combustion /chamber 5 is suitably'made pear-shaped or bulbous with an integrally formed intake 8 having cooling ns l. The fuel which preferably comprises gasoline 1 ls conducted to the burner through a pipe Il which leads to any suitable source of fuel supply such as the carburetor, intake pipe or fuel pump of the motor vehicle. The Supply is controlled by a valve H which is actuated by a rod I2 and link i3, the rod I2 extending into the body of the l5 vvehicle as shown in Figure l, and being 'provided with a button or handle I l. 'Ihe pipe In is connected with an intake mixing valve I5 of any suitable kind for mixing-air with the fuel, suchvalve .being preferably of the needle controlled type having -a-handle I6 for adjusting the same. The combustion chamber 5 is provided with a sight opening I1 whereby the operator may observe the natureof the combustion. It is also provided with a spark plug Il for ignitimproved heater of the character indicated; to

connected by wire 23 with' a This spark plug 'is actuated by means of cuirent from a high tension coil of a buzzer or ignition device I9, being connected therewith by means of a wire ZU-this ai-,

rangement being substantially the same as'that more or less commonly used for supplyingcur- 5 rent to the spark plugs of an engine. As illustra-- tive of such arrangement, a circuit or wiring diagramis shown in Figure 4v in which current is suppliedfrom a battery or other suitable source of supply 2|., one terminal of this battery being .10 grounded by wire 22 and the other terminal `being switch member 2 4, which'x'nember is adapted to make contact with the contact 25 which is connected by wire 26 wlthtne buzzer or vibrating con I9, the other ter- 15 minal of this coil being grounded by wire 21. It will be readily seen that whenthe switch is closed current will be supplied to the vibrating coil from the battery and high tension current will be supplied from the coil wire 20 to the spark plug i8.- 20

outlet 28 which is connected with a combined outlet'and supporting pipe 25 that leads to the heat distributing unit or apparatus 3i) which is 25 preferably located on the opposite side of the dashboard orwall 3l and within the body of the vehicle. In the particular arrangement shown, the pipe 29 is connected with the inlet end of the tlrst radiator'section or coil 32 which preferably 30 extends around the substantially complete circumference as shown in Figure 2J and has its outlet end connected by means of a nipple -33 with the inlet 3 4 of the second radiator coil 35 which v also extends around a substantially complete cir- 35 cu'ml'erence and has its outlet end 36 connected with a pipe 31 which leads to the intake manifold (not shown) of the vehicle engine, orto some suitable point connected with the vehicle power plant for producing suction in said pipe. 40 'I'he passageway through this pipe is controlled by means of a manually operable control valve 38 which is of considerable importance in accurately adjusting the combustion'apparatus.

The radiator coils or elements are preferably 45 suitable number of sections may be utilized. In

the present arrangement the gases of combustion orrheat supplying gases pass around the `iirst section 32 -in a counterclo'ckwise direction as shown.V

from the'rear, and then around the section 35 in a clockwise direction, thus serving tolpake a portion of one coil will be adjacent to the L cooler portion ofthe next coil.

The radiator is mounted in a shell or housing 49 and is secured therein by means of bolts or cap screws- 4i which extend through the housing and engage with threaded lugs 42 on the heater coils, spacers 43 being provided to give suitable clearance around the heater. The housing has a hollow projection 44 forming an auxiliaryV airV intake which is connected with the housing by an opening 45 as shown in Figure l. The projection 44 terminates in an annular threaded portion 46 which engages a threaded pipe 41 which serves ias l a support for the various parts of the heater. This pipe passes through a hole 48 in the dash or wall 3l of the vehicle and is held in adjusted position by nuts B9 and 50. A supportingL plate El js also carried by the support 4l and provides a support for the coil I9 which is secured thereto.

in any convenient manner. The threaded pipe or support 41 is suiliclently large to permit the passage of the pipes 29 and 31 so that it is necessary to make only one hole through the dash in order to mount the complete apparatus. The pipe or support 4l also serves as an ax'is so-that the heat distributing housing 4b may be adjusted circumerentially to any desired position. The pipe is also threaded a suilicient distance so that the parts carried thereby may also be adjusted longitudinally with respect to the wall 3l.

The heater shell or housing E is provided at one end with an air deilector or head E2 which is secured thereto by means of screws 53 and which has a plurality of air passages or holes 54 to permit the passage of air through the radiator.Y

This head has an inwardly extending cylindrical portion 55 which provides a chamber within the radiator, for the fan motor 56 which actuates the fan 51. The rear end oi the cylinder 55 has'a. cap 58 which is secured thereto by screws 59 and which has a plurality of holes G9V to permit the free passage of air therethrough for Ventilating the motor. The motor 5B is mounted on the cap 53 and'is secured thereto by means o2 bolts or screws 5i.

The rear end of the hounng 4d is provided with a deflector disc 62 which is rotatably securedin position by means of a ring 63 and screws The disc may be rotated by means of a handle S5 and carriesa plurality oi shutters B8 which are pivotally mounted or hinged therein in any suitable manner, these shutters having handles Si for .opening and closing the same.

From this description it will be seen that I provide Va heating apparatus which may be readily mounted in the vehicle and when so mounted the furnace or heater and the vibrating coil or box will be located under the hood so that these parts are readily accessible for connection, observation and adjustment. The nofei method of mounting also permits the heat distributor to be located at any convenient or desiredpoint in the vehicle and they positioning of the Ian motorwithin the radiator and location of the fan betweenthe radiator and the controlling shutters reduces the space required for the same which is highly desirable in view of thefact that the space in which such parts may beplaced is often congested.

when the heater is to be used, it wutb assumed that the vehicle engine is started which.

providessuction on the pipe 31. The fuel'is admitted through the pipe I0 and control and vmixing valve I5 and combustion chamber 5 where closed combustion chamber supply pipe from it is ignited by um spark'plug la. The gases o: combustion or other gases are carried from the chamber li through the pipe 29 and the radiator and then back through the pipe 31 to the intake manifold or point oi suction in the engine. This causes a rapid circulation oi heat through.V the radiator for supplying the desired heat to the vehicle. The switch 24 will be conveniently located for the oprator or driver and when turned to the contact 25 will rst supply current to the spark plug so that the radiator' may be o heated before the ian is started. Further movement of the switch 24 causes it to make contact with a second contact il. as shown in Figure 4 which closes the 'circuit from the battery 2| through wire 23, switch 24, wire 69, motor It and wire 10 toground, thus supplying current to the motor and starting the circulation through the radiator. Further movement of the switch 24 will break` the 1circuit through the contact 2i thereby shutting of! the spark plug while maintaining the circuit through the motor 56. Thereafter the heat in the combustionchamber will be suiicient to maintain combustion without using the spark plug, thus not onlysavlng current but also avoiding interference in the event that the vehicle is provided with a radio.

The suction created by the fan not to draw airv in through the holes 54 but also `through the space between the motor and the cylinder 55,- thus tending to keep the motor suiciently cool. This suction also causes air to be drawn in through the open end of the pipe 41 around lthe pipes 29 and 31 and down through the hole or passageway 45, thustending to keep such parts suciently cool.-

While I have shown and described a particular embodiment o! my invention it will be readily understoodl by those skilled in the art that variations may be made in the construction disclosed without departing from the basic features oi my invention. I therefore do not wish to be limited to the precise construction include within the scope of my invention ail such modiiications and variations-which will readily suggest themselves.-

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only tends disclosed but wish to What I claim as new and desire to secure by supporting said generating apparatus and said u heat distributing apparatus.

2. The combination with an automobile having a closed body and a dashboard and having an internal combustion engine, of a' substantially cated on the engine side of said dashboard, a mixing valve connected with the intake, aiuel V the intakewalve to the fuel supply of the engine, a spark plug mounted' in the combustion chamber, a radiator connected having an intake loj with the combustion chamber andmounted in the body of the vehicle on the opposite side'of the dashboard, an electric motor driven fan for forcing air through the radiator, and means for supplying high-.tensioncurrent to said spark slug.

3.--'111e combination with a vehicle having an internal combustion' engine and a closed body having a wall with a hole extending thereaisance through, of a combustion chambermounted outside the body adjacent tothe engine, means iorsupplying i'uel to the combustion chamber. a

spark plug for igniting the fuel in said combustion chamber, a pipe passing throughv said hole in said wall, means for securing said pipe to said Awa11, a housing .within the body of the vehicle carried by said pipe, a radiator mounted in the housing, a combined supply and supporting pipe from the radiator extending through said rst named pipe and connected with the combustion chamber and adapted to 'support the'same, an

outlet pipe from the radiator leading through said iirst named pipe and connected with a point of suction provided by-the vehicle engine, a support also carried by said ilrst named pipe,- and a vibrating coil' mounted on said support and adapted to supply current to said spark plug.

4. The combination with an automobile having a dash and having an internal combustion engine, of a tubular supporting member extending Ithrough a hole in the dash, means' `for securing said membertothe dash,ahousingsecuredto lsaid member and-adapted to be adjusted rotatably with respect to the axis o( the member, a A

`manifold of the engine, and a valve in said outlet pipe. 5. A heaterof the class described for automobiles, consisting of a heat distributing unit and a heat generating unit, means for mounting the heat distributing unit on one side of a supporting wall of an automobile body. means for conduct# ing a heating medium from the heat generating unit to the heatdistributingunit, said means providing a support for the heat generating unit;- 20

`WILLIAMKARSEL 

